Built for serious conditioning, this heavy-duty workout sandbag pairs a polyester Cordura 1000D inner bag with a Pu coating and a rugged nylon 1050D Cordura outer shell for lasting durability. Reinforced connection points and full-length handles keep every clean, press, and carry secure, while Ykk zippers, double-layer hook-and-loop closures, and double-stitched side seams lock the fill in and resist water and sand spillage. An adjustable design lets you dial the weight from 125 to 200 pounds, tailoring resistance to any fitness level and targeting shoulders, arms, chest, abs, and legs for a true full-body workout. Once emptied, the bag folds flat and slips into a training bag, ready for home sessions, commercial gyms, outdoor training, or travel. Ships unfilled so you control the load.